Exclude flaky PanelLayoutManagerTest.PanelAlignmentSecondDisplay test

TBR=flackr@chromium.org
BUG=234854
NOTRY=true

Review URL: https://chromiumcodereview.appspot.com/14413015

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@196101 0039d316-1c4b-4281-b951-d872f2087c98
1 file changed